at the time plaintiffs filed suit. Further, the district courts and other circuit courts that had discussed the concept of vicarious liability in the RICO context had reached differing results. Compare Tryco Trucking Co. v. Belk Stores Servs., Inc., 634 F.Supp. 1327, 1334-35 (W.D.N.C.1986) (finding that "RICO envisions respondent superior liability"), Morley v. Cohen, 610 F.Supp. 798, 811 (D.Md.1985) (concluding that "a corporation or partnership can be held liable under RICO for the acts of its agents and/or representatives committed within the scope of their authority") and Bernstein v. IDT Corp., 582 F.Supp. 1079, 1083 (D.Del.1984) ("When conduct is proscribed by a federal statute and civil liability for that conduct is explicitly or implicitly imposed, the normal rules of agency law apply in the absence of some indication that Congress had a contrary intent."), with D & S Auto Parts, Inc. v. Schwartz, 838 F.2d 964, 968 (7th Cir.) ("rejecting the doctrine of respondeat superior in civil RICO cases), cert. denied, 486 U.s. 1061, 108 S.Ct. 2833, 100 L.Ed.2d 933 (1988), Continental Data Sys. v. Exxon Corp., 638 F.Supp. 432, 440 (E.D.Pa.1986) ("I believe that the application of ordinary agency principles runs counter to the intended structure and operation of RICO civil liability.") and Dakis v. Chapman, 574 F.Supp. 757, 759-60 (N.D.Cal.1983) (refusing to allow respondeat superior RICO liability for securities law violations by lower level corporate executive).
To determine whether plaintiffs had any evidence that the City was involved in a scheme, then, we must ascertain whether plaintiffs had a sufficient factual basis for implicating any City employees (who were acting within the scope of their actual or apparent authority) in the scheme. Our discussion concerning Alfred Smith in section IV(B)(1)(b) above disposes of this matter. As the executive director of the HRC, Alfred Smith clearly was the City's agent. His actions regarding MBE certification, and especially his action with regard to the October, 1987, memorandum, were at least within the scope of his apparent authority. Because we have found that the October, 1987, memorandum gave plaintiffs a sufficient basis for Rule 11 purposes to implicate Smith in the scheme, we find that plaintiffs also had a sufficient factual basis under Rule 11 for implicating the City in the scheme. The district court abused its discretion in concluding that there was no evidence to support plaintiffs' implication of the City.
2. Sanctions on the Section 1983 Count
a. Sanctions to the City on the section 1D88 count
The district court awarded sanctions to the City on this count because plaintiffs proffered only a single concluso-ry allegation of policy or custom that was without factual support and was contradicted by other allegations in the complaint. Whether plaintiffs' complaint makes only a conclusory allegation of municipal custom or policy is irrelevant to our Rule 11 inquiry. See Simpson, 900 F.2d at 36. The factual support for the allegation is relevant, however. Because the concept of a municipal policy or custom is a legal one, we must assess the factual support in light of the legal standards.
Contrary to the earlier discussion of the situation obtaining vis-a-vis the RICO count, it is clear that when plaintiffs filed their complaint a plaintiff could not establish municipal liability under section 1983 solely on a respondeat superior theory. Monell v. Department of Social Servs., 436 U.S. 658, 694, 98 S.Ct. 2018, 2037, 56 L.Ed.2d 611 (1978); Milligan v. City of Newport News, 748 F.2d 227, 229 (4th Cir.1984). A plaintiff must show that the execution of a municipal custom or policy inflicts the injury. Monell, 436 U.S. at 694, 98 S.Ct. at 2087, Hughes v. Halifax County School Bd., 855 F.2d 183, 185 (4th Cir.1988), cert. denied, 488 U.S. 1042, 109 S.Ct. 867, 102 L.Ed.2d 991 (1989). A custom would exist where there are "`persistent and widespread ... practices of [municipal] officials [which] [a]lthough not authorized by written law, [are] so permanent and well-settled as to [have] the force of law.'" Spell v. McDaniel, 824 F.2d 1880, 1386 (4th Cir.1987) (quoting Monell, 436 U.S. at 691, 98 S.Ct. at 2036), cert. denied, 484 U.S.